year = 1900
if year%100 == 0:
    if year % 400 == 0:
        print("是闰年")
    else:
        print("平年")
else:
    if year % 4 == 0:
        print("是闰年")
    else:
        print("平年")
year = 2000
if year%100 == 0 and year%400 == 0 or
    print("闰年")
else:
    print("平年")